IP Library Granted Patent US 11,729,039
Granted Patent B2
US 11,729,039 · App. 17/459,274 · Granted Aug 15, 2023

ATSC 3.0 single frequency networks used for positioning navigation timing and synergy 4G / 5G networks

Inventors: Michael J. Simon (Frederick, MD); Mark A. Aitken (Parkton, MD); Ebenezer K. Kofi (Hunt Valley, MD); Louis Herbert Libin (Woodmere, NY)
Assignee: SINCLAIR BROADCAST GROUP, INC.
H04L27/2626H04W28/06
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Quick Facts
Patent No.
US 11,729,039
App. No.
17/459,274
Granted
Aug 15, 2023
Kind
B2
Abstract

According to some embodiments, a method includes selecting a length for an advanced television system committee (ATSC) 3.0 frame for transmission by a single frequency network (SFN) transmitter and aligning the SFN transmitter with a global positioning system (GPS) epoch. The method further includes storing geographical coordinates of the SFN transmitter and a corresponding SFN transmitter identification (TX ID) in a database. The method also includes encoding the SFN TX ID in a non-coherent symbol of a plurality of positioning navigation timing (PNT) symbols comprising a plurality of coherent symbols and the non-coherent symbol with orthogonal frequency-division multiplexing (OFDM) numerology to support positioning. The method further includes prepending the plurality of PNT symbols to the ATSC 3.0 frame to generate a modified ATSC 3.0 frame and transmitting the modified ATSC 3.0 using a SFN transmitter antenna of the SFN transmitter.

Claims (45)

1. A method, comprising:

selecting a length for an advanced television system committee (ATSC) 3.0 frame for transmission by a single frequency network (SFN) transmitter;

aligning the SFN transmitter with a global positioning system (GPS) epoch;

storing geographical coordinates of the SFN transmitter and a corresponding SFN transmitter identification (TX ID) in a database;

encoding the SFN TX ID in a non-coherent symbol of a plurality of positioning navigation timing (PNT) symbols comprising a plurality of coherent symbols and the non-coherent symbol with orthogonal frequency-division multiplexing (OFDM) numerology to support positioning;

prepending the plurality of PNT symbols to the ATSC 3.0 frame to generate a modified ATSC 3.0 frame; and

transmitting the modified ATSC 3.0 frame using an SFN transmitter antenna of the SFN transmitter.

2. The method of claim 1 , wherein encoding the SFN TX ID in the non-coherent symbol of the plurality of PNT symbols comprises generating a Gold sequence code based on at least two polynomial equations.

3. The method of claim 1 , wherein the plurality of coherent symbols are generated using a PNT composite sequence generator comprising a Zadoff-Chu (ZC) sequence generator and a pseudo-random noise (PN) sequence generator.

4. The method of claim 3 , wherein the ZC sequence generator generates a ZC sequence based on a prime number value from a set of prime numbers.

5. The method of claim 1 , further comprising using a first PNT symbol of the plurality of PNT symbols for synchronization at a PNT receiver.

6. The method of claim 1 , further comprising using a second PNT symbol and a third PNT symbol of the plurality of PNT symbols for sending a notification to a user of a user equipment.

7. The method of claim 6 , wherein the notification to the user is an emergency alert or a targeted content for delivery to the user.

8. The method of claim 1 , wherein:

the plurality of PNT symbols comprises one or more pre-boot symbols and one or more Layer 1 (L1) symbols,

the one or more pre-boot symbols are generated based on a Zadoff-Chu (ZC) sequence and a pseudo-random noise (PN) sequence, and

the one or more pre-boot symbols and the one or more L1 symbols are configured to direct a user equipment (UE) in at least one of a device-based geo-targeting or a targeting advertisement using geo-fencing.

9. The method of claim 8 , further comprising:

generating the one or more pre-boot symbols using a sampling frequency of 6.144 MHz, an inverse fast Fourier transform (IFFT) with a size of 2048, a sub-carrier spacing of 3 kHz, a ZC length of 1913, and a cyclic shift of 8 bits/symbol.

10. The method of claim 8 , further comprising:

using polar codes and quadrature phase shift keying (QPSK) modulation with the one or more L1 symbols.

11. An apparatus, comprising:

a memory to store instructions; and

a processor configured to perform the instructions to:

select a length for an advanced television system committee (ATSC) 3.0 frame for transmission by a single frequency network (SFN) transmitter;

align the SFN transmitter with a global positioning system (GPS) epoch;

store geographical coordinates of the SFN transmitter and a corresponding SFN transmitter identification (TX ID) in a database;

encode the SFN TX ID in a plurality of positioning navigation timing (PNT) symbols;

prepend the plurality of PNT symbols to the ATSC 3.0 frame to generate a modified ATSC 3.0 frame; and

transmit the modified ATSC 3.0 frame using an SFN transmitter antenna of the SFN transmitter.

12. The apparatus of claim 11 , wherein to encode the plurality of PNT symbols, the processor is configured to use a non-coherent composite sequence configured to uniquely identify the SFN transmitter, wherein the non-coherent composite sequence comprises a Gold code sequence.

13. The apparatus of claim 12 , wherein the processor is further configured to perform the instructions to generate a coherent and non-coherent composite sequence using a PNT composite sequence generator comprising a coherent Zadoff-Chu (ZC) sequence generator and a pseudo-random noise (PN) sequence generator and a non-coherent Gold code sequence.

14. The apparatus of claim 13 , wherein the ZC sequence generator generates the ZC sequence based on a prime number value from a set of prime numbers comprising 3343, 4099, 6899 and 8191 and wherein the Gold code sequences comprises a length from a set comprising 2047, 4095, and 8191.

15. The apparatus of claim 11 , wherein a first PNT symbol of the plurality of PNT symbols is used for synchronization at a PNT receiver.

16. The apparatus of claim 11 , wherein to encode the plurality of PNT symbols, the processor is further configured to perform the instructions to encode augmentation data in a third PNT symbol and a fourth PNT symbol of the plurality of PNT symbols.

17. A non-transitory computer-readable medium including instructions stored thereon that, when executed by at least one computing device, cause the at least one computing device to perform operations comprising:

selecting a length for an advanced television system committee (ATSC) 3.0 frame for transmission by a single frequency network (SFN) transmitter;

aligning the SFN transmitter with a global positioning system (GPS) epoch;

storing geographical coordinates of the SFN transmitter and a corresponding SFN transmitter identification (TX ID) in a database;

encoding the SFN TX ID in a non-coherent symbol of a plurality of positioning navigation timing (PNT) symbols comprising a plurality of coherent symbols and the non-coherent symbol with orthogonal frequency-division multiplexing (OFDM) numerology to support positioning;

prepending the plurality of PNT symbols to the ATSC 3.0 frame to generate a modified ATSC 3.0 frame; and

transmitting the modified ATSC 3.0 frame using an SFN transmitter antenna of the SFN transmitter.

18. The non-transitory computer-readable medium of claim 17 , wherein encoding the SFN TX ID in the non-coherent symbol of the plurality of PNT symbols comprises generating a Gold sequence code based on at least two polynomial equations.

19. The non-transitory computer-readable medium of claim 17 , wherein the plurality of coherent symbols are generated using a PNT composite sequence generator comprising a Zadoff-Chu (ZC) sequence generator and a pseudo-random noise (PN) sequence generator.

20. The non-transitory computer-readable medium of claim 19 , wherein the ZC sequence generator generates a ZC sequence based on a prime number value from a set of prime numbers.

Assignments (2)
CHANGE OF NAME Recorded May 8, 2025
From: SINCLAIR BROADCAST GROUP, INC.
To: SINCLAIR BROADCAST GROUP, LLC
Reel/Frame 071234/0989 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 21, 2022
From: SIMON, MICHAEL J.; AITKEN, MARK A.; KOFI, EBENEZER K.; LIBIN, LOUIS HERBERT
To: SINCLAIR BROADCAST GROUP, INC.
Reel/Frame 061840/0928 →
Continuity (2)
Provisional Application 63072477 · Aug 31, 2020
Related Publication 20220070042A1 · Mar 3, 2022
Cited By (1)
US 12,464,196